The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). A disclosed tubular welding wire has a sheath and a core, and the tubular welding wire includes an organic stabilizer component, a rare earth component, and a corrosion resistant component comprising one or more of: nickel, chromium, and copper.

The present application describes an article having a first metal component joined to a second metal component by a metallurgic joint of presintered powdered metal interposed between contiguous surfaces of the first metal component and the second metal component. The present application also describes a composition for use in a brazing process comprising a presintered powdered metal. The present application also describes a process for brazing including the following steps: presintering a powdered metal; adding the presintered powdered metal to a first and second metal component; and heating the combination of the first and second metal components containing the presintered powdered metal until the powdered metal melts and joins the metal components to form a metallurgic joint.

A gas turbine engine component may include a coating adapted to protect the component during use. The coating may be applied by sintering metallic particles to form a metallic matrix fused to the component.

A method for producing a component structure from a first component and a second component may involve connecting the first component to the second component by way of a thermal joining process. The component structure has good crash properties, has good vibration resistance, has a lightweight construction, and is produced cost-effectively at least in part because the first component being a steel composite structure comprising a softer layer and a more-rigid layer. The softer layer may have a lower material strength and a higher deformability than the more-rigid layer. A part of a joint zone that is located in the first component may be formed at least partially in the relatively soft layer.

Manufactured articles, and methods of manufacturing enhanced surface smoothed components and articles. More particularly, surface smoothed components and articles, such as combustor components of turbine engines, having surface treatment conferring reduced roughness for enhanced performance and reduced wear related reduction in part life.

A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.

The invention relates to a hybrid electroslag cladding method, comprising: providing a workpiece (6) to be cladded; guiding a strip electrode (4) onto the surface of the workpiece (6); cladding the strip electrode (4) onto the surface of the workpiece (6) using electroslag cladding; guiding a metal cored hybrid electroslag cladding wire (7) into the weld puddle (9) of the strip electrode (4) for controlling the chemical composition of the cladding. The invention further relates to hybrid electroslag cladding systems and wires.

An article includes a substrate and a structure of additive manufacturing material of predetermined thickness attached to the substrate, the structure of additive manufacturing material formed by providing a metal alloy powder, forming an initial layer having a preselected thickness and a preselected shape including at least one aperture, with the metal alloy powder, sequentially forming an additional layer with the metal alloy powder over the initial layer, each of additional layers having an additional preselected thickness and an additional preselected shape including an aperture corresponding to the aperture in the initial layer, and joining each of the additional layers to the initial layer or any previously joined additional layers, forming a structure having a predetermined thickness and shape, and an aperture having a predetermined profile. The article includes a passageway through the structure including the aperture and a corresponding metering hole.

The present disclosure relates to a method which uses welding in order to join a FeCrAl alloy to a FeNiCr alloy by using a specific filler metal. The present disclosure also relates to a product obtained thereof. Further, the present disclosure relates to the use of the method, especially in high temperature applications.

Weld metals and methods for welding ferritic steels are provided. The weld metals have high strength and high ductile tearing resistance and are suitable for use in strain based pipelines. The weld metals are comprised of between 0.03 and 0.08 wt % carbon, between 2.0 and 3.5 wt % nickel, not greater than about 2.0 wt % manganese, not greater than about 0.80 wt % molybdenum, not greater than about 0.70 wt % silicon, not greater than about 0.03 wt % aluminum, not greater than 0.02 wt % titanium, not greater than 0.04 wt % zirconium, between 100 and 225 ppm oxygen, not greater than about 100 ppm nitrogen, not greater than about 100 ppm sulfur, not greater than about 100 ppm phosphorus, and the balance essentially iron. The weld metals are applied using a power source with pulsed current waveform control with <5% CO.sub.2 and <2% oxygen in the shielding gas.